ASTM_D_7192_-_20.pdf

Designation:D719220Standard Test Method forHigh Speed Puncture Properties of Plastic Films Using Loadand Displacement Sensors1This standard is issued under the fixed designation D7192;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This test method covers the determination of punctureproperties of plastic films,over a range of test velocities.1.1.1 ASTM Terminology Standard D883 has defined filmas having a thickness not greater than 0.25 mm.Plasticmaterials having a thickness above this limit are not to beexcluded from use unless shown to be rigid(see 3.2.1).TestMethod D3763 is the recommended method for instrumentedpuncture testing of rigid plastics.1.2 Test data obtained by this test method is relevant andappropriate for use in engineering design.1.3 The values stated in SI units are to be regarded asstandard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.NOTE1This test method does not closely conform to ISO 7765-2.Theonly similarity between the two tests is that they are both instrumentedimpact tests.The differences in striker,fixture,specimen geometries andin test velocity can produce significantly different test results.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD883 Terminology Relating to PlasticsD3763 Test Method for High Speed Puncture Properties ofPlastics Using Load and Displacement SensorsD4000 Classification System for Specifying Plastic Materi-alsD6988 Guide for Determination of Thickness of Plastic FilmTest SpecimensE456 Terminology Relating to Quality and StatisticsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3.Terminology3.1 DefinitionsTerms used in this standard are defined inaccordance with Terminology D883,unless otherwise speci-fied.For terms relating to precision and bias and associatedissues,the terms used in this standard are defined in accordancewith Terminology E456.3.2 Definitions of Terms Specific to This Standard:3.2.1 rigid,adjany plastic specimen that,when placed onthe support component of the open clamp assembly,does notdeflect into the center of the unsupported region(under its ownweight)by more than 0.05 mm from the horizontal plane of thesupport component.3.2.1.1 DiscussionThis definition is provided as a guide-line to allow testing of soft,pliable plastic materials that arethicker than 0.25 mm.4.Significance and Use4.1 This test method is designed to provide load versusdeformation response of plastic films under essentially multi-axial deformation conditions at impact velocities.This testmethod further provides a measure of the rate sensitivity of theplastic films to impact.4.2 Multi-axial impact response,while partly dependent onthickness,does not necessarily have a linear correlation withspecimen thickness.Therefore,results should be comparedonly for specimens of essentially the same thickness,unlessspecific responses versus thickness formulae have been estab-lished for the plastic films being tested.4.3 For many plastic films,it is possible that a specificationexists that requires the use of this test method,but with someprocedural modifications that take precedence when adhering1This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.19 on Film,Sheeting,andMolded Products.Current edition approved Feb.1,2020.Published March 2020.Originallyapproved in 2005.Last previous edition approved in 2019 as D7192-19.DOI:10.1520/D7192-20.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organizat